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Finding the Fourth Proportional to 5,733.36, 7,911.88 and 3,215.26

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Solution

The fourth proportional to 5,733.36, 7,911.88 and 3,215.26 is: 4,436.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,733.36 : 7,911.88 = 3,215.26 : x
  2. Step 2: Convert to fraction form
    5,733.36/7,911.88 = 3,215.26/x
  3. Step 3: Cross multiply
    5,733.36x = 7,911.88 × 3,215.26
  4. Step 4: Simplify right side
    5,733.36x = 25,438,751.29
  5. Step 5: Solve for x
    x = 25,438,751.29/5,733.36
  6. Step 6: Final answer
    x = 4,436.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.